Fun Fact in mathematics

Fun Fact in mathematics

1) The only number in English that is spelled with its letters in alphabetical order is ‘forty’. 
2) The only Shakespeare play to include the word ‘mathematics’ is The Taming Of The Shrew.
3) “Pure mathematics is, in its way, the poetry of logical ideas.” (Albert Einstein). 
4) “Mathematics [is] the subject in which we never know what we are talking about nor whether what we are saying is true.” (Bertrand Russell).